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* @license Apache-2.0
*
* Copyright (c) 2026 The Stdlib Authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
'use strict';
// MAIN //
/**
* Adds elements of a strided array `x` to the corresponding elements of a strided array `y` and assigns the results to `y`.
*
* @private
* @param {PositiveInteger} N - number of indexed elements
* @param {Object} x - input array object
* @param {Collection} x.data - input array data
* @param {Array<Function>} x.accessors - array element accessors
* @param {integer} strideX - `x` stride length
* @param {NonNegativeInteger} offsetX - starting `x` index
* @param {Object} y - output array object
* @param {Collection} y.data - output array data
* @param {Array<Function>} y.accessors - array element accessors
* @param {integer} strideY - `y` stride length
* @param {NonNegativeInteger} offsetY - starting `y` index
* @returns {Object} output array object
*
* @example
* var toAccessorArray = require( '@stdlib/array/base/to-accessor-array' );
* var arraylike2object = require( '@stdlib/array/base/arraylike2object' );
*
* var x = [ 1.0, 2.0, 3.0, 4.0, 5.0 ];
* var y = [ 2.0, 3.0, 4.0, 5.0, 6.0 ];
*
* gxpy( x.length, arraylike2object( toAccessorArray( x ) ), 1, 0, arraylike2object( toAccessorArray( y ) ), 1, 0 );
* // y => [ 3.0, 5.0, 7.0, 9.0, 11.0 ]
*/
function gxpy( N, x, strideX, offsetX, y, strideY, offsetY ) {
var xbuf;
var ybuf;
var xget;
var yset;
var yget;
var ix;
var iy;
var i;
// Cache references to array data:
xbuf = x.data;
ybuf = y.data;
// Cache references to element accessors:
xget = x.accessors[ 0 ];
yget = y.accessors[ 0 ];
yset = y.accessors[ 1 ];
ix = offsetX;
iy = offsetY;
for ( i = 0; i < N; i++ ) {
yset( ybuf, iy, xget( xbuf, ix ) + yget( ybuf, iy ) );
ix += strideX;
iy += strideY;
}
return y;
}
// EXPORTS //
module.exports = gxpy;
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